package com.wlient.springboot_quartz.util;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

//工具类SpringContextUtils，用来从spring容器里获取bean
@Component
public class SpringContextUtils implements ApplicationContextAware {
  
    private static ApplicationContext applicationContext;  
  
    @Override  
    public void setApplicationContext(ApplicationContext applicationContext)
            throws BeansException {
        SpringContextUtils.applicationContext = applicationContext;  
    }  
  
    public static Object getBean(String name) {  
        return applicationContext.getBean(name);  
    }  
  
    public static <T> T getBean(Class<T> requiredType) {  
        return applicationContext.getBean(requiredType);  
    }  
  
    public static <T> T getBean(String name, Class<T> requiredType) {  
        return applicationContext.getBean(name, requiredType);  
    }  
  
    public static boolean containsBean(String name) {  
        return applicationContext.containsBean(name);  
    }  
  
    public static boolean isSingleton(String name) {  
        return applicationContext.isSingleton(name);  
    }  
  
    public static Class<? extends Object> getType(String name) {  
        return applicationContext.getType(name);  
    }  
}